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Date: Mon, 12 Nov 2018 20:49:18 -0500
From: Steven Rostedt <>
To: Alexander Popov <>
Cc:, Kees Cook <>,
 Jann Horn <>, Ingo Molnar <>, Andy
 Lutomirski <>, Joerg Roedel <>, Borislav
 Petkov <>, Thomas Gleixner <>, Dave Hansen
 <>, Peter Zijlstra <>, Jan
 Kara <>, Mathieu Desnoyers <>,
 Dan Williams <>, Masahiro Yamada
 <>, Masami Hiramatsu <>,,
Subject: Re: [PATCH 1/1] stackleak: Disable function tracing and kprobes for

On Tue, 13 Nov 2018 00:08:48 +0300
Alexander Popov <> wrote:

> The stackleak_erase() function is called on the trampoline stack at the end
> of syscall. This stack is not big enough for ftrace and kprobes operations,
> e.g. it can be exhausted if we use kprobe_events for stackleak_erase().
> So let's disable function tracing and kprobes for stackleak_erase().
> Reported-by: kernel test robot <>
> Signed-off-by: Alexander Popov <>

Reviewed-by: Steven Rostedt (VMware) <>

-- Steve

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